From 3271f6c7196b0330ae36ac47308c1bbfafb63866 Mon Sep 17 00:00:00 2001
From: Yifan Zhang <yifan1.zhang@amd.com>
Date: Mon, 11 Oct 2021 20:37:01 +0800
Subject: drm/amdkfd: fix boot failure when iommu is disabled in Picasso.
Git-commit: afd18180c07026f94a80ff024acef5f4159084a4
Patch-mainline: v5.16-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
When IOMMU disabled in sbios and kfd in iommuv2 path, iommuv2
init will fail. But this failure should not block amdgpu driver init.
Reported-by: youling <youling257@gmail.com>
Tested-by: youling <youling257@gmail.com>
Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com>
Reviewed-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 4 ----
drivers/gpu/drm/amd/amdkfd/kfd_device.c | 3 +++
2 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 239e71174855..7798276c8c49 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2398,10 +2398,6 @@ static int amdgpu_device_ip_init(struct amdgpu_device *adev)
if (!adev->gmc.xgmi.pending_reset)
amdgpu_amdkfd_device_init(adev);
- r = amdgpu_amdkfd_resume_iommu(adev);
- if (r)
- goto init_failed;
-
amdgpu_fru_get_product_info(adev);
init_failed:
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
index 064d42acd54e..08eedbc6699d 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
@@ -1029,6 +1029,9 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd,
svm_migrate_init((struct amdgpu_device *)kfd->kgd);
+ if(kgd2kfd_resume_iommu(kfd))
+ goto device_iommu_error;
+
if (kfd_resume(kfd))
goto kfd_resume_error;
--
2.38.1